The state is not very good at amassing such data, in fact has been really poor at doing so. At EU level the Public Procurement Data Space is an attempt at improving the dysmal situation but one that in my view is unlikely to change the situation.
The Commission launched last week the PPDS, a service that is expected to aggregate data about public procurement in the EU. In essence it takes the data included in the eForms filled in by contractin...
As for the UK, as I argued in the discussion of the green paper and public consultation for the Procurement Act, this was a missed opportunity to improve how data was captured and menial tasks automated. Something countries like Ukraine (since 2014) and Paraguay (since 2016) have been able to do.
(Happy to share the paper linked on my short blogpost if of value.)